ST Nozzles

Abrasion Resistant Full Cone Spiral Spray Nozzles

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  • Designed for use with abrasive materials such as limestone slurry
  • Extensive history as a wet FGD (flue gas desulphurization) absorber nozzle
  • Available in cobalt alloy 6 or industrial ceramic (reaction bonded silicon carbide)
  • Inherently clog resistant with no internal parts
  • The spiral design produces a spray with more developed surface area than other nozzle styles for a given flow and pressure
  • Designed by BETE, the inventor of the spiral nozzle
  • Cobalt alloy 6 or RBSC ceramic parts in high-wear areas
  • High energy efficiency
  • No internal parts
  • Clog-resistant
  • Male and female connections
  • Flanged and special connections available as required
  • Fine atomization
Common Materials:
316 / Cobalt Alloy 6, 316 / RBSC

Full Cone

Select a nozzle number below for performance graph, drawings, and to request a quote.
Nozzle Number Connection Sizes Spray Angles gpm @ psi     (density: 1 SG)
5 psi 20 psi 40 psi 60 psi 100 psi 400 psi
ST 6 1/4″ 90°, 120° .494 .988 1.40 1.71 2.21 4.42
ST 8 1/4″ 90°, 120° .919 1.84 2.60 3.18 4.11 8.22
ST 10 1/4″ 90°, 120° 1.41 2.83 4.00 4.90 6.32 12.6
ST 12 3/8″ 90°, 120° 2.12 4.24 6.00 7.35 9.49 19.0
ST 14 3/8″ 90°, 120° 2.86 5.72 8.10 9.91 12.8 25.6
ST 16 3/8″ 90°, 120° 3.76 7.51 10.6 13.0 16.8 33.6
ST 20 3/8″ 90°, 120° 5.84 11.7 16.5 20.2 26.1 52.2
ST 24 3/4″ 90°, 120° 8.52 17.0 24.1 29.5 38.1 76.2
ST 28 3/4″ 90°, 120° 11.7 23.3 33.0 40.4 52.2 104
ST 32 3/4″ 90°, 120° 14.8 29.7 42.0 51.4 66.4 133
ST 40 1″ 90°, 120° 23.7 47.4 67.0 82.1 106 212
ST 48 1″ 90°, 120° 33.5 67.1 94.9 116 150 300
ST 56 1 1/2″ 90°, 120° 45.6 91.2 129 158 204 408
ST 64 1 1/2″ 90°, 120° 59.7 119 169 207 267 534
ST 72 1 1/2″ 90°, 120° 68.0 136 192 235 304 608
ST 88 2″, 2 1/2″ 90°, 120° 99.1 198 280 343 443 886
ST 96 2″, 3″ 90°, 120° 125 250 354 433 559 1120
ST 112 3″ 90°, 120° 181 362 512 627 810 1620
ST 128 3″ 90°, 120° 239 479 677 829 1070 2140
ST 160 4″ 90°, 120° 371 742 1050 1290 1660 3320

Available Spray Patterns: